The Road to Reality: A Complete Guide to the Laws of the UniverseFrom one of our greatest living scientists, a magnificent book that provides, for the serious lay reader, the most comprehensive and sophisticated account we have yet had of the physical universe and the essentials of its underlying mathematical theory. Since the earliest efforts of the ancient Greeks to find order amid the chaos around us, there has been continual accelerated progress toward understanding the laws that govern our universe. And the particularly important advances made by means of the revolutionary theories of relativity and quantum mechanics have deeply altered our vision of the cosmos and provided us with models of unprecedented accuracy. What Roger Penrose so brilliantly accomplishes in this book is threefold. First, he gives us an overall narrative description of our present understanding of the universe and its physical behaviors–from the unseeable, minuscule movement of the subatomic particle to the journeys of the planets and the stars in the vastness of time and space. Second, he evokes the extraordinary beauty that lies in the mysterious and profound relationships between these physical behaviors and the subtle mathematical ideas that explain and interpret them. Third, Penrose comes to the arresting conclusion–as he explores the compatibility of the two grand classic theories of modern physics–that Einstein’s general theory of relativity stands firm while quantum theory, as presently constituted, still needs refashioning. Along the way, he talks about a wealth of issues, controversies, and phenomena; about the roles of various kinds of numbers in physics, ideas of calculus and modern geometry, visions of infinity, the big bang, black holes, the profound challenge of the second law of thermodynamics, string and M theory, loop quantum gravity, twistors, and educated guesses about science in the near future. In The Road to Reality he has given us a work of enormous scope, intention, and achievement–a complete and essential work of science 
What people are saying  Write a review
User ratings
5 stars 
 
4 stars 
 
3 stars 
 
2 stars 
 
1 star 

LibraryThing Review
User Review  amarcobio  LibraryThingPopular books explain complex concepts in simple words. Technical books provide theoretical justification for scientific concepts. In my modest opinion, this book pretends to be a popular and a ... Read full review
LibraryThing Review
User Review  HadriantheBlind  LibraryThingA feast for any physicist, or anyone who wants to learn the depth and beauty of physics, etc. as we know it. Not dumbed down at all. Throws every subject imaginable at you. If you can understand it ... Read full review
Other editions  View all
The Road to Reality: A Complete Guide to the Laws of the Universe Roger Penrose No preview available  2016 
The Road to Reality: A Complete Guide to the Laws of the Universe Roger Penrose No preview available  2007 
Common terms and phrases
according actually algebra allowed appears applied appropriate basic bundle called Chapter circle classical closed complex components connection consider consistent constant continuous coordinate corresponding curve defined derivative described dimensions direction effect element energy entire equation example expression fact field function geometry give given gravitational hole idea important indices integral involved issue kind light mass mathematical matter means measurement metric momentum namely nature normal notation Note notion observed obtain operator ordinary original particle particular photon physical picture plane positive possible probability quantity quantum mechanics reason Recall referred regard region relation relativity remarkable represented respect result rotation seems sense Show simply space spacetime special relativity sphere square standard string structure symmetry taken tensor theory things transformation unit universe vector